As of 17:46 PDT

Weather in Duwamish, WA

59°Current weather

Duwamish, Tuesday, 20 October, 17:46

Clear. Feels like 58°. High 62°, low 45°.

Pressure30.03 inHg
Wind9.2 mph NW
Humidity73%
Visibility6.2 mi
Dew point49°

Monthly outlook for Duwamish, WA: average high 58.3°, average low 46.1°. That is 2.2° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 9 days and 3.5 inches. The warmest day looks like 21 October (67.3°), the coolest 24 October (41.7°).

58.3°/46.1°
Average high / low
+2.2°
Above normal
3 / 9
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
20 October – 29 October60.9°55.3°+3.1°
30 October – 8 November54°52.2°+1°
9 November – 18 Novemberat normal49.6°—

October records over 66 years

84.9°1 October 1987All-time high
24.1°28 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Riverton (1 mi).

Wed, 2167° / 44°0Mostly clear
67 °Mostly clear

Duwamish, Wednesday, 21 October

Mostly clear. High 67°, low 44°.

Pressure29.94 inHg
Wind0.9 mph NE
Humidity78%
Visibility6.2 mi
Dew point48°
Thu, 2257° / 46°0Overcast
57 °Overcast

Duwamish, Thursday, 22 October

Overcast. High 57°, low 46°.

Pressure30.03 inHg
Wind1.8 mph NW
Humidity66%
Visibility—
Dew point43°
Fri, 2356° / 46°0Overcast
56 °Overcast

Duwamish, Friday, 23 October

Overcast. High 56°, low 46°.

Pressure30.36 inHg
Wind4.4 mph NW
Humidity75%
Visibility3.6 mi
Dew point44°
Sat, 2453° / 42°0Overcast
53 °Overcast

Duwamish, Saturday, 24 October

Overcast. High 53°, low 42°.

Pressure30.24 inHg
Wind3.4 mph N
Humidity80%
Visibility5.4 mi
Dew point44°
Sun, 2560° / 48°0Overcast
60 °Overcast

Duwamish, Sunday, 25 October

Overcast. High 60°, low 48°.

Pressure30.18 inHg
Wind6.5 mph N
Humidity89%
Visibility—
Dew point47°
Mon, 2664° / 46°0Overcast
64 °Overcast

Duwamish, Monday, 26 October

Overcast. High 64°, low 46°.

Pressure30.27 inHg
Wind6.6 mph N
Humidity44%
Visibility—
Dew point33°
Tue, 2764° / 46°0Mostly clear
64 °Mostly clear

Duwamish, Tuesday, 27 October

Mostly clear. High 64°, low 46°.

Pressure30.15 inHg
Wind7.3 mph N
Humidity42%
Visibility—
Dew point32°
Wed, 2863° / 46°0Clear
63 °Clear

Duwamish, Wednesday, 28 October

Clear. High 63°, low 46°.

Pressure30.06 inHg
Wind6.9 mph N
Humidity40%
Visibility—
Dew point31°
Thu, 2963° / 46°0Clear
63 °Clear

Duwamish, Thursday, 29 October

Clear. High 63°, low 46°.

Pressure30.00 inHg
Wind4.3 mph S
Humidity37%
Visibility—
Dew point29°
Fri, 3058° / 46°0Partly cloudy
58 °Partly cloudy

Duwamish, Friday, 30 October

Partly cloudy. High 58°, low 46°.

Pressure29.91 inHg
Wind8 mph SW
Humidity61%
Visibility—
Dew point39°
Sat, 3155° / 49°0.05Light rain
55 °Light rain

Duwamish, Saturday, 31 October

Light rain. High 55°, low 49°.

Pressure29.83 inHg
Wind10.6 mph SW
Humidity67%
Visibility—
Dew point42°
Sun, 0156° / 48°0Light rain
56 °Light rain

Duwamish, Sunday, 1 November

Light rain. High 56°, low 48°.

Pressure30.09 inHg
Wind6.8 mph S
Humidity61%
Visibility—
Dew point37°
Mon, 0255° / 45°0Overcast
55 °Overcast

Duwamish, Monday, 2 November

Overcast. High 55°, low 45°.

Pressure30.15 inHg
Wind5.5 mph N
Humidity45%
Visibility—
Dew point29°
Tue, 0348° / 46°0.32Rain
48 °Rain

Duwamish, Tuesday, 3 November

Rain. High 48°, low 46°.

Pressure30.09 inHg
Wind3.5 mph N
Humidity87%
Visibility—
Dew point43°
Wed, 0451° / 48°0.57Rain
51 °Rain

Duwamish, Wednesday, 4 November

Rain. High 51°, low 48°.

Pressure29.77 inHg
Wind5 mph E
Humidity87%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0552° / 41°0.19Climate normal
52 °Climate normal

Duwamish, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high52°
Average low41°
Average precipitation0.19 in
Chance of precipitation55%
Record high63° (1997)
Record low25° (2003)
Fri, 0651° / 42°0.28Climate normal
51 °Climate normal

Duwamish, Friday, 6 November

Climate normal for this date — 60-year average.

Average high51°
Average low42°
Average precipitation0.28 in
Chance of precipitation62%
Record high58° (1967)
Record low25° (2003)
Sat, 0751° / 42°0.26Climate normal
51 °Climate normal

Duwamish, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high51°
Average low42°
Average precipitation0.26 in
Chance of precipitation60%
Record high61° (2016)
Record low28° (2003)
Sun, 0851° / 41°0.19Climate normal
51 °Climate normal

Duwamish, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high51°
Average low41°
Average precipitation0.19 in
Chance of precipitation52%
Record high65° (2016)
Record low30° (1982)
Mon, 0950° / 41°0.24Climate normal
50 °Climate normal

Duwamish, Monday, 9 November

Climate normal for this date — 60-year average.

Average high50°
Average low41°
Average precipitation0.24 in
Chance of precipitation67%
Record high60° (2025)
Record low32° (1982)
Tue, 1051° / 40°0.2Climate normal
51 °Climate normal

Duwamish, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high51°
Average low40°
Average precipitation0.2 in
Chance of precipitation45%
Record high62° (2016)
Record low26° (1986)
Wed, 1151° / 40°0.24Climate normal
51 °Climate normal

Duwamish, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high51°
Average low40°
Average precipitation0.24 in
Chance of precipitation57%
Record high61° (1996)
Record low25° (1985)
Thu, 1250° / 41°0.26Climate normal
50 °Climate normal

Duwamish, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high50°
Average low41°
Average precipitation0.26 in
Chance of precipitation65%
Record high58° (1990)
Record low25° (1985)
Fri, 1350° / 40°0.29Climate normal
50 °Climate normal

Duwamish, Friday, 13 November

Climate normal for this date — 60-year average.

Average high50°
Average low40°
Average precipitation0.29 in
Chance of precipitation60%
Record high62° (1967)
Record low26° (2014)
Sat, 1450° / 40°0.29Climate normal
50 °Climate normal

Duwamish, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high50°
Average low40°
Average precipitation0.29 in
Chance of precipitation53%
Record high62° (1969)
Record low26° (2014)
Sun, 1550° / 40°0.24Climate normal
50 °Climate normal

Duwamish, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high50°
Average low40°
Average precipitation0.24 in
Chance of precipitation67%
Record high59° (2021)
Record low26° (2014)
Mon, 1648° / 40°0.23Climate normal
48 °Climate normal

Duwamish, Monday, 16 November

Climate normal for this date — 60-year average.

Average high48°
Average low40°
Average precipitation0.23 in
Chance of precipitation72%
Record high60° (1965)
Record low26° (2014)
Tue, 1748° / 39°0.26Climate normal
48 °Climate normal

Duwamish, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high48°
Average low39°
Average precipitation0.26 in
Chance of precipitation60%
Record high60° (1995)
Record low27° (1961)
Wed, 1847° / 38°0.18Climate normal
47 °Climate normal

Duwamish, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high47°
Average low38°
Average precipitation0.18 in
Chance of precipitation57%
Record high57° (1965)
Record low27° (1975)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Duwamish, WA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Duwamish, WA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.